Lycoming TIO-541

TIO-541
	Lycoming TIO-541
Type	Piston aero-engine
National origin	United States
Manufacturer	Lycoming Engines
First run	1963
Major applications	Beechcraft Duke; Beechcraft Baron
Produced	1965–present
Developed from	Lycoming O-540

The Lycoming TIO-541 engine is a turbocharged, fuel-injected, horizontally opposed, six-cylinder aircraft engine featuring three cylinders per side, manufactured by Lycoming Engines.^[1]^[2]

The TIO-541 family of engines includes the TIGO-541 turbocharged, fuel-injected, geared, horizontally opposed engine.^[2]

There is no carburetted, non-turbocharged version of the engine, which would have been designated O-541 and therefore the base model is the TIO-541.^[1]

Design and development

The TIO-541 family of engines covers a range from 310 hp (231 kW) to 450 hp (336 kW). The engine has a fuel injection system which meters fuel in proportion to the induction airflow. The engine has a displacement of 541.5 cubic inches (8.87 litres) and produces a maximum of 450 hp (336 kW) in its TIGO-541 version. The cylinders have air-cooled heads.^[1]^[2]

The first TIO-541-A1A was type certified on 23 February 1965 on the regulatory basis of CAR 13 effective 15 June 1956 as amended to 13-1 through 13-4.^[1]

Variants

TIO-541-A1A: Six-cylinder, turbocharged, fuel-injected, 310 hp (231 kW) engine, dry weight 449 lb (204 kg), AiResearch T-1823 turbosupercharger, certified 23 February 1965. Has top induction, down exhaust and side-mounted accessory drives. Provisions for a single-acting, controllable-pitch propeller and internal piston cooling oil jets.^[1]
TIO-541-E1A4: Six-cylinder, turbocharged, fuel-injected, 380 hp (283 kW) engine, dry weight 595 lb (270 kg), AiResearch T-1823 turbosupercharger, certified 16 December 1966. Similar to the -A1A but with higher horsepower rating, different cylinder heads, cam shaft, crankshaft and extra counterweights. Incorporates cabin pressurization venturi.^[1]
TIO-541-E1B4: Six-cylinder, turbocharged, fuel-injected, 380 hp (283 kW) engine, dry weight 595 lb (270 kg), AiResearch T-1823 turbosupercharger, certified 16 December 1966. Similar to the -E1A4 but without the cabin pressurization venturi.^[1]
TIO-541-E1C4: Six-cylinder, turbocharged, fuel-injected, 380 hp (283 kW) engine, dry weight 586 lb (266 kg), AiResearch T-1879 turbosupercharger, certified 21 October 1969. Similar to the -E1A4 but with a different turbosupercharger with cast bracket, cast transition and a separate wastegate.^[1]
TIO-541-E1D4: Six-cylinder, turbocharged, fuel-injected, 380 hp (283 kW) engine, dry weight 584 lb (265 kg), AiResearch T-1879 turbosupercharger, certified 21 October 1969. Similar to the -E1B4 but with a different turbosupercharger with cast bracket, cast transition and a separate wastegate.^[1]
TIGO-541-B1A: Six-cylinder, turbocharged, fuel-injected, geared, 450 hp (336 kW) engine, dry weight 663 lb (301 kg), AiResearch T-1879 turbosupercharger, certified 12 February 1970. Similar to the -C1A but with a higher power rating and without provisions for cabin bleed air.^[2]
TIGO-541-C1A: Six-cylinder, turbocharged, fuel-injected, geared, 400 hp (298 kW) engine, dry weight 703 lb (319 kg), AiResearch T-1879 turbosupercharger, certified 19 November 1968. Has internal piston cooling oil jets, side-mounted accessory drives and a single oil supply from the propeller governor. Provisions for a reverse-pitch propeller control.^[2]
TIGO-541-D1A: Six-cylinder, turbocharged, fuel-injected, geared, 450 hp (336 kW) engine, dry weight 706 lb (320 kg), AiResearch T-18A21 turbosupercharger, certified 26 June 1969. Similar to the -C1A but with a higher power rating and a different turbocharger with provisions for cabin bleed air.^[2]
TIGO-541-D1B: Six-cylinder, turbocharged, fuel-injected, geared, 450 hp (336 kW) engine, dry weight 710 lb (322 kg), AiResearch T-18A51 turbosupercharger, certified 3 December 1976. Similar to the -D1A but with an integral wastegate turbocharger and a revised exhaust system and with low drag cylinders.^[2]
TIGO-541-E1A: Six-cylinder, turbocharged, fuel-injected, geared, 425 hp (317 kW) engine, dry weight 706 lb (320 kg), AiResearch T-18A21 turbosupercharger, certified 26 June 1969. Similar to the -D1A but with a lower power rating, different turbocharger spring rate and a variable absolute pressure controller.^[2]
TIGO-541-G1AD: Six-cylinder, turbocharged, fuel-injected, geared, 450 hp (336 kW) engine, dry weight 714 lb (324 kg), AiResearch T-18A21 turbosupercharger, certified 1 May 1975. Similar to the -D1A but it includes an intercooler, a dual magneto and a fuel injector with fuel head enrichment.^[2]

Applications

TIO-541

TIGO-541

Specifications (TIO-541-A1A)

Data from TYPE CERTIFICATE DATA SHEET NO. E10EA^[1]

General characteristics

Type: Six-cylinder, air-cooled, horizontally opposed, direct-drive, fuel-injected, turbosupercharged aircraft engine
Bore: 5.125 in (130 mm)
Stroke: 4.375 (111 mm)
Displacement: 541.5 in³ (8.87 litres)
Dry weight: 449 lb (249 kg) dry

Components

Turbocharger: AiResearch turbosupercharger model T-1823
Fuel system: Bendix RSA 10AD1
Fuel type: 100LL avgas
Cooling system: air-cooled

Performance

Power output: 310 hp (233 kW) at 2575 rpm
Specific power: 0.57 hp/in³ (26.7 kW/L)
Compression ratio: 7.30:1
Power-to-weight ratio: 0.69 hp/lb (0.94 kW/kg)

References

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Federal Aviation Administration (April 1986). "TYPE CERTIFICATE DATA SHEET NO. E10EA, Revision 7". Retrieved 2009-01-13.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Federal Aviation Administration (April 1986). "TYPE CERTIFICATE DATA SHEET NO. E19EA, Revision 4". Retrieved 2009-01-13.

[E10EA-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Federal Aviation Administration (April 1986). "TYPE CERTIFICATE DATA SHEET NO. E10EA, Revision 7". Retrieved 2009-01-13.

[E19EA-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Federal Aviation Administration (April 1986). "TYPE CERTIFICATE DATA SHEET NO. E19EA, Revision 4". Retrieved 2009-01-13.

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